I read the The Girl With the Dragon Tattoo series recently, which was extremely engrossing. The first book has a bit of a health metrics theme, with each section prefaced with a shocking statistic about violence against women in Sweden. The second book has a bit of a math theme, with each section prefaced by a correct, if inane algebraic equation.
Also in the second book, the tattooed girl spends some time reading a strangely titled math book, Dimensions in Mathematics, and I liked the story enough to google the book, since it was presented with author and publisher. It turned out that this just revealed more mystery.